<template>
  <div>
    <div class="search">
      <input
        v-model="keyword"
        type="text"
        class="search-input"
        placeholder="请输入城市名或拼音"
      />
    </div>
    <div class="search-content" ref="search" v-show="keyword">
      <ul>
        <li class="search-item boder-bottom" v-for="item of list" :key="item.id" @click="handleCityClick(item.name)">{{item.name}}</li>
        <li class="search-item boder-bottom" v-for="item of list" :key="item.id" v-show="hasNoData">没有找到匹配数据</li>
      </ul>
    </div>
  </div>
</template>
<script>
import Bscroll from 'better-scroll'
import { mapMutations } from 'vuex'
export default {
  name: "CitySearch",
  props: {
    cities: Object
  },
  data () {
    return {
      keyword: '',
      list: [],
      timer:null
    }
  },
  computed: {
    hasNoData() {
      return !this.list.length
    }
  },
  watch: {
    keyword () {
      if (this.timer) {
        clearTimeout(this.timer)
      }
      if (!this.keyword) {
        this.list = []
        return
      }
      this.timer = setTimeout(() => {
        const result = []
        for (let i in this.cities) {
          this.cities[i].forEach((value) => {
            if(value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1 ) {
              result.push(value)
            }
          })
        }
        this.list = result
      },100)
    }
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.search)
  },
  methods: {
    handleCityClick (city) {
      this.changeCity(city)
      this.$router.push('/')
    },
    ...mapMutations(['changeCity'])
  }
}
</script>
<style lang="stylus" scoped>
@import '~styles/varibles.styl';

.search {
  height: 0.72rem;
  padding: 0 0.1rem;
  background: $bgColor;
  .search-input {
    box-sizing: border-box;
    width: 100%;
    height: 0.62rem;
    line-height: 0.62rem;
    padding: 0 0.1rem;
    border-radius: 0.06rem;
    text-align: center;
    color: #666;
  }
}
  .search-content
    z-index:1
    overflow:hidden
    position:absolute
    top:1.58rem
    left:0
    right:0
    bottom:0
    background:#eee
    .search-item
      line-height:.62rem
      padding-left:.2rem
      background:#fff
      color:#666
</style>


